T420 blueooth shut off switch or constant battery drain?

Hey guys,
If I order bluetooth with my t420 will it be a constant drain on battery or is their a shut off switch?
thanks in advance!
Solved!
Go to Solution.

they don't use much power and you can turn it off with hot key combo FN + F5 & there is a radio switch but it turns off all radios
Thinkpad R61 7733-1GU
Thinkpad X61T 7762-54U
Thinkpad X60T 6363-4GU
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